Cartridge.



F. 0. HOAGLAND.

CARTRIDGE.

APPLICATION FILED JUNE 18, 1914. 1 1 09,840. P n ed Sept. 8, 1914.

W/ T/VESSES:

TH; NORRIS PETERS 60.. PHDTOLITHO" WASHINGTON. n. C,

- ire s'r'rrzs P FFICE.

FRANK O. HOAGLAND, OF BRIDGEPOBT, CONNECTICUT, ASSIGNGR T UNION METALLIC CARTRIDGE COMPANY, OF BRIDGEPORT, CONNECTICUT, A CORPORATION 01* CON- NECTICUT.

CARTRIDGE.

Serial No. 845,775.

To all whom it may concern i Be it known that I, FRANK O. HOAGLAND, a citizen of the United States, residing at Bridgeport, county of Fairfield, State of Connecticut, have invented an Improvement in Cartridges, of which the following is a specification.

This invention relates to rim fire cartridges which require relatively light metallic shells, and is a carrying forward of the invention of my Patent No. 1,094,565, granted April 28, 1914c. My said former patent provided for locking the bullet in the shell by a plurality of indentations of the metal of the shell into the bullet back of the mouth of the shell. The previous mode of locking the bullets was by crimping the mouths of the shells. In practice, it is practically imposslble to prevent a slight difference in the lengths of the shells as a whole and likewise practically impossible to make all portions of the wall of the same shell of the same length. In carrying out my said former invention, I found that under certain conditions it was desirable instead of making the indentations back of the mouth of the shell to make them' at the mouth of the shell, but without crimping the mouth of the shell, it being understood that the term crimping, as used in this art, means rolling the mouth of the shell into the bullet. As stated in my said former patent, this crimping operation must take place at exactly the same place without regard to the length of the shells and furthermore if the crimp is made deep enough to hold the bullet securely it tends to deform the relatively soft bullet and if made light enough to avoid deformation of the bullet the bullet is not held securely. The objection to the crimping operation is that irrespective of the deformation of the bullet, the amount of metal at the mouth of the shell that is forced. into the bullet by the crimping operation varies slightly, the result being that some of the bullets are locked in the shells more tightly than others so that a greater pressure is required in some instances than in others to force the bullet out of the shell when the explosion takes place, thereby affecting to a greater or less extent, the velocity of the bullet and tending to prevent extreme accuracy in shooting. In the present instance I overcome this objection and secure relative l accuracy in shooting by locking the bullets to the shells by means of a' plurality of indentations at the ends of the shells which cross the ends thereof and extend into the bullet more orless, the exact amount that the indentations extend beyond the end of the shell being immaterial asthe bullet is locked to the shell by the shoulders at the rear ends of the indentations. This circumferential line of indentations is necessarily always made at the same place and. is so .located relatively to the mouth of the shell that at the longest portions of the shell the indentations will extend slightly beyond the shell. and into the bullet, and in the shorter portions of the shell the indentations will extend a less distance back into the shell and a greater distance forward into the bullet from the end of the shell. By this means I.

wholly overcome not only differences in the lengths of different shells but differences in the length of the wall of the same shell, it being wholly immaterial so long as the looking of the bullet to the shell is effected by means of the shoulders at therear ends of the indentations how far, within reasonable limits, the indentations extend forwardinto the bullet. The result is that in irregular Patented Sept. 8, 1914.

shells, that is, shells of slightly different lengths and having portions of the wall of the same shell of different lengths, I am enabled to secure practically uniform results in shooting' In the accompanying drawing forming a portion of this specification, Figure 1 is an elevation of my novel cartridge; Fig. 2 a partial longitudinal section thereof, and Fig. 3 is a transverse section on the line 38 in Fig. 1, looking in the direction of the arrows.

10 denotes the shell, 11 the bullet and 12' the powder. The length of the shell and the length and contour of the bullet are wholly immaterial so far as the present invention is concerned. The powder is placed in the shell and the bullet is seated'thereon in the usual manner. The open end of the shell is left perfectly straight without regard to differences in the lengths of the shells and difierences in the length of the wall of clifferent portions of the same shell. The bullet is locked in place by making a plurality of indentations 13 circumferentially of the shell and forcing the indented metal of the shell into the bullet and lockingthe bullet to the shell by means of shoulders 1 at the inner ends of the indentations.

, The invention is not limited to any special number or size of the indentations, the' special feature of the invention being that v these indentations cross the exterior line of separation between the shell and the bullet more or less, as clearly indicated in Fig. 1. By crossing this line I mean that the line must be fully reached so as to insure that there will be no bur or'roughness of the I tion of the indentation is intersected by the Copies of this patent may be obtained for five cents each, by addressing the Commissioner 01' Intent,

line, for the reason that the bullet is locked in place by the shoulders and it makes no difference within the reasonable limits how Having thus described 'my invention I claim: v p

A cartridge of the-character described comprising a relatively light metallic shell and a bullet locked therein by a plurality of circumferentially placed indentationszofthe metal of the shell into the bullet; said indentations beginning back of'the exterior line; of separation between the shell and'the bul let and crossingsaid line, irrespective of the.

lengths of shells or the length of difl'erfent portions of the wall of the same shell; 7 In testimony whereof I aflix mysignature in presence of two witnesses.

Witnesses:

CHARLES F. LINDSAY,- MARY S. Bmmonens;

Washington, D. 0.

FRANK o. o e A n 

